1. summary
TD1500 is a wide range, high precision, multi-functional DC standard source precision instrument. It can directly output DC voltage, current, power and electric energy with high stability and high accuracy. The best measurement uncertainty has three specifications of Class 0.01 / Class 0.02 / Class 0.05, which is suitable for verification or calibration of various types of DC measuring instruments. The technical performance of the equipment is in the leading Class among similar products, and it is widely used in electric power, measurement, military industry, manufacturing, scientific research and other fields to establish DC measurement standards.
2. Product characteristics
• Standard source: 1 mV ~ 1100 V (1150 V @ electric energy selection)
• Standard source: 1 μ A ~33 A / 100 A (optional)
• Standard source of DC voltage: 100 μ V~4.4 V (optional)
• Measurement function of DC voltage: 10 μ V ~ 4.4 V (optional)
• A variety of quantity and value output mode
• Special automatic test software (optional)
• Support for remote control adjustment output (optional)
• Verification of DC electricity meter (functional option)
• Secondary signal measurement of the transmitter (functional option)
3. Application
☆ Calibrate DC electrical measuring meter |
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• DC voltage standard source (DCV) output range: 1 mV ~ 1100 V (power type up to 1150 V) • DC current standard source (DCI) output range: 1 μ A ~ 33 A / 110 A (optional) (power type up to 120 A) • Class 0.01 specification instrument: suitable for calibrating DC voltmeter and ammeter of Class 0.05 and below, and suitable for calibrating DC power meter of Class 0.1 and below. • Class 0.02 specification instrument: suitable for calibrating AC voltmeter and ammeter of Class 0.1 and below, and suitable for calibrating DC power meter of Class 0.2 and below. • Class 0.05 specification instrument: suitable for calibrating AC voltmeter and ammeter of Class 0.2 and below, and suitable for calibrating DC power meter of Class 0.5 and below. |
4. Panel Features
☆ Front panel of the instrument | |
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S/N | Description |
| LCD touch color screen, more power intuitive display, full touch operation, greatly improve the ease of usability of the instrument. |
| Key operation panel, a variety of value input / adjustment mode, greatly improve the operation convenience of the instrument. |
| DC voltage output terminal supports maximum 1150 V voltage output. |
| DC current output terminal supports maximum 120 A current output. |
| The secondary signal input terminal of the DC transmitter supports the input of the maximum DC 24 mA or 12 V signal. |
| DC small signal voltage output / measurement terminal, with support output / measurement range of ± (100 μ V~4.4 V). |
☆ Rear Panel | |
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S/N | Description |
| Pulse input terminal: power pulse FC from left to right, photoimpact FIN, photometer head SC |
| Pulse output terminal: from left to right is the electric energy pulse FL/ FH, Clock pulse PPS. |
| Remote control adjustment interface: the remote control adjustment box (option) can be connected to facilitate the calibration of the analog pointer instrument. |
| RS232 communication interface: realize communication with computer, facilitate users to establish automatic test system. |
| Shell ground: Make that the casing ground is reliably grounded before use |
| Power interface: AC 220V power input interface with switch and safety pipe |
☆ Four-wire Small Signal Voltage Source |
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• Four-wire small signal voltage source: can accurately output ± (10 μ V~4.4 V) small signal voltage signal, as the current input of indirect access DC electricity meter (the shunt specification can be set, and displayed according to its primary current). • Scheme value: using the four-wire Kelvin connection mode, and equipped with low thermal potential terminal and wire, compared with the traditional two-wire voltage source, can effectively eliminate the influence of wire resistance, contact potential and thermal potential on the measurement. |
☆ Professional Test Software (optional) |
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• Equipped with automatic verification software, it can adapt to all kinds of electrical measuring instruments, refer to JJG 124-2005 ammeter, voltage meter, power meter, JJF 1587-2016 digital multimeter calibration specification, JJG 842-2017 electronic DC electricity meter, and automatically generate the detection report to improve the detection efficiency. • Support for test data recording, analysis, management, and certificate export. • Software functions can be customized according to customer needs, and support subsequent software upgrades required by adding new procedures for testing. |
5.Technical specifications
5.1 DC Voltage Output DCV
Range | Short-Term Stability (%/Min) | Optimum Measurement Uncertainty (k=2) (Ppm*Rd+Ppm *Rg)① | Maximum Load Current (mA) | ||||
Class 0.05 | Class 0.02 | Class 0.01 | Class 0.05 | Class 0.02 | Class 0.01 | ||
10 mV | 0.01 | 0.005 | 0.003 | 200 + 5 μV | 100 + 5 μV | 100 + 5 μV | 100 |
30 mV | 0.01 | 0.005 | 0.003 | 200 + 5 μV | 100 + 5 μV | 100 + 5 μV | 100 |
100 mV | 0.01 | 0.005 | 0.003 | 200 + 5 μV | 100 + 5 μV | 100 + 5 μV | 100 |
300 mV | 0.01 | 0.005 | 0.003 | 200 + 5 μV | 100 + 5 μV | 100 + 5 μV | 100 |
1 V | 0.005 | 0.005 | 0.002 | 200 + 100 | 100 + 50 | 60 + 40 | 500 |
3 V | 0.005 | 0.005 | 0.002 | 200 + 100 | 100 + 50 | 60 + 40 | 500 |
10 V | 0.005 | 0.005 | 0.002 | 200 + 100 | 100 + 50 | 60 + 40 | 500 |
30 V | 0.005 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 800 |
100 V | 0.005 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 300 |
300 V | 0.005 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 100 |
600 V | 0.005 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 50 |
1000 V | 0.005 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 30 |
Note ①: RD is the read value and RG is the range value | |||||||
• Voltage output range: 1 mV ~ 1100 V (or 1150 V @ power type option)
• Coripple coefficient: <0.5%, 7-bit decimal display
• Protection function: short-circuit protection, overload protection
5.2 DC current output DCI
Range | Short-Term Stability (%/Min) | Optimum Measurement Uncertainty (k=2) (Ppm*Rd+Ppm *Rg)② | Maximum Load Voltage (V) | ||||
Class 0.05 | Class 0.02 | Class 0.01 | Class 0.05 | Class 0.02 | Class 0.01 | ||
10 μA | 0.01 | 0.01 | 0.01 | 300 + 200 | 300 + 200 | 300 + 200 | 11 |
30 μA | 0.01 | 0.005 | 0.005 | 300 + 200 | 120 + 80 | 120 + 80 | 11 |
100 μA | 0.01 | 0.005 | 0.005 | 300 + 200 | 120 + 80 | 120 + 80 | 11 |
300 μA | 0.01 | 0.005 | 0.005 | 300 + 200 | 120 + 80 | 120 + 80 | 11 |
1 mA | 0.01 | 0.005 | 0.003 | 300 + 200 | 120 + 80 | 100 + 50 | 11 |
3 mA | 0.01 | 0.005 | 0.003 | 300 + 200 | 120 + 80 | 100 + 50 | 11 |
10 mA | 0.01 | 0.005 | 0.003 | 300 + 200 | 120 + 80 | 100 + 50 | 11 |
30 mA | 0.01 | 0.005 | 0.003 | 300 + 200 | 120 + 80 | 100 + 50 | 11 |
100 mA | 0.01 | 0.005 | 0.003 | 300 + 200 | 120 + 80 | 100 + 50 | 11 |
300 mA | 0.01 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 11 |
1 A | 0.01 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 11 |
3 A | 0.01 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 4 |
10 A | 0.01 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 4 |
30 A | 0.01 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 3 |
100 A③ | 0.01 | 0.005 | 0.002 | 300 + 200 | 120 + 80 | 60 + 40 | 3 |
Note ②: RD is the read value and RG is the range value Note ③: The 100 A range is optional | |||||||
• Current output range: 1 μ A ~33 A, ripple coefficient: <0.5%, 7-bit decimal display
• Optional 100 A current output option to extend the current output range to 1 μ A to 110 A (or 120 A @ power type option)
• Protection function: open-circuit protection, overload protection
5.3 DC Power / Energy Specification (power optional)
Dc Power / Power | Output Range | A combination of a DC voltage and a DC current (or a small DC signal voltage) |
Uncertainty Of Measurement | Voltage measurement uncertainty + uncertainty of current measurement (or uncertainty of small DC signal voltage measurement) | |
Electric Energy Pulse | Standard Electrical Energy Pulse Input | The high-frequency full range value corresponds to 60 kHz; The low-frequency full range value corresponds to 6 Hz; |
Pulse Output Frequency | The output frequency jitter time was <10 μ s | |
Annual Stability Of The Clock Frequency | Better than ± 50 ppm | |
Standard Electrical Energy Pulse Input | Signal amplitude is 5V, with a TTL Class; capable ≤ 200 kHz; FH = 60 kHz power value / voltage range value / current range value FL = 60 kHz power value / voltage range value / current range value / 10000 | |
Electric Energy Error Display | Automatically displayed with a resolution of 0.0001% |
5.4 DC small signal voltage output (optional)
Range | Short-term Stability (%/min) | Measurement Uncertainty (k=2) (ppm*RD+ppm *RG/μV )③ | Maximum Load Current (mA) |
1 mV | 1 μV | 120 + 2 μV | ≤10 |
3 mV | 1 μV | 120 + 2 μV | ≤10 |
10 mV | 1 μV | 120 + 2 μV | ≤10 |
30 mV | 1 μV | 120 + 2 μV | ≤10 |
100 mV | 0.005 | 120 + 80 | ≤10 |
300 mV | 0.005 | 120 + 80 | ≤10 |
1 V | 0.005 | 120 + 80 | ≤10 |
4 V | 0.005 | 120 + 80 | ≤10 |
Note ③: RD is the read value and RG is the range value | |||
• Output range: ± (100 μ V~4.4 V), four-wire Kelvin connection
• Note: This function can be used as a current input for the indirect access DC electricity meter (corresponding to the shunt voltage)
5.5 Small DC signal measurement (optional)
Voltage / Current range | Measuring Range | Optimum Measurement Uncertainty (k=2) (ppm*RD+ppm *RG) |
1 V | ± (0~1.2) V | 60 + 40 |
10 V | ± (0~12) V | 60 + 40 |
2 mA | ± (0~2.4) mA | 60 + 40 |
20 mA | ± (0~24) mA | 60 + 40 |
Note : RD is the reading value and RG is the range value | ||
6. General technical specifications
Power Supply | AC (220±22) V ，(50±2) Hz |
Preheating time | 30 Minutes |
Max. Power dissipation | 700 VA |
Temperature Performance | Operating temperature: 0°C~40°C Calibration temperature: 18°C~28°C Storage temperature: -20°C~70°C |
Humidity Performance | Working Humidity: <80% @ 30°C, <70% @ 40°C, and <40% @ 50°C Storage humidity: (20%~80%) R · H, no condensation |
Altitude | < 3000 m |
Weight | About 17.5kg |
Communication Interfaces | The RS232 interface |
Dimension | 446 mm (W) × 522 mm (D) × 197 mm (H) |
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